Step-by-step explanation:
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Step 1:

Wright the equation
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Step 2:

Transfer the power of y ie ¹² up to subtract it
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Step 3:

by subtracting the powers we get 0
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Step 4:

so the results comes 1 because anything ⁰=1
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⚡Final answer :1✓
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hope it helped you:)
I think thats how ur welcome
A is the right option! Because 0.40 should be in second equation with the x to represent the number of stamps multiply by 40 cents.
Answer:
the answer is:
-0.86
Step-by-step explanation:
Step-by-step explanation:
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